package com.gansu.weather.widget;

import java.util.ArrayList;

import com.gansu.weather.R;
import com.gansu.weather.bean.Weather;
import com.gansu.weather.bean.WeatherInfo;
import com.gansu.weather.util.LogUtil;

import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.widget.TextView;

public class TrendAdapter extends PagerAdapter{
	ArrayList<View> arrayList;
	public TrendAdapter(ArrayList<View> arrayList){
		this.arrayList = arrayList;
	}
	
	
	@Override
	public int getCount() {
		if(arrayList!=null && arrayList.size()>0){
			return arrayList.size();
		}
		return 0;
	}

    /**
     * Create the page for the given position.  The adapter is responsible
     * for adding the view to the container given here, although it only
     * must ensure this is done by the time it returns from
     * {@link #finishUpdate()}.
     *
     * @param container The containing View in which the page will be shown.
     * @param position The page position to be instantiated.
     * @return Returns an Object representing the new page.  This does not
     * need to be a View, but can be some other container of the page.
     */
	@Override
	public Object instantiateItem(View collection, int position) {

		View view = arrayList.get(position);
		
		((ViewPager) collection).addView(view,0);
		return arrayList.get(position);
	}

    /**
     * Remove a page for the given position.  The adapter is responsible
     * for removing the view from its container, although it only must ensure
     * this is done by the time it returns from {@link #finishUpdate()}.
     *
     * @param container The containing View from which the page will be removed.
     * @param position The page position to be removed.
     * @param object The same object that was returned by
     * {@link #instantiateItem(View, int)}.
     */
	@Override
	public void destroyItem(View collection, int position, Object view) {
		((ViewPager) collection).removeView(arrayList.get(position));
	}

	
	
	@Override
	public boolean isViewFromObject(View view, Object object) {
		return view==(object);
	}

	
    /**
     * Called when the a change in the shown pages has been completed.  At this
     * point you must ensure that all of the pages have actually been added or
     * removed from the container as appropriate.
     * @param container The containing View which is displaying this adapter's
     * page views.
     */
	@Override
	public void finishUpdate(View arg0) {
	}
	

	@Override
	public void restoreState(Parcelable arg0, ClassLoader arg1) {}

	@Override
	public Parcelable saveState() {
		return null;
	}

	@Override
	public void startUpdate(View arg0) {
	}
	
}
